David A Frederick Master Technician Contact 865.574.4809 | frederickda@ornl.gov All Publications Friction Extrusion: Solid-State Metal Synthesis and Recycling in Sustainable Manufacturing In-situ formation of Al3Ni nano particles in synthesis of Al 7075 alloy by friction stir processing with Ni powder addition Microstructure Evolution and Mechanical Property Characterization of 6063 Aluminum Alloy Tubes Processed with Friction Stir Back Extrusion HEAT INPUT AND POST WELD HEAT TREATMENT EFFECTS ON REDUCED-ACTIVATION FERRITIC/MARTENSITIC STEEL FRICTION STIR WELDS Causal Factors of Weld Porosity in Gas Tungsten Arc Welding of Powder Metallurgy Produced Titanium Alloys ... Improving the Tribological Characteristics of Aluminum Alloys by Forming a Nanocomposite Surface Layer using Friction Stir Processing Friction Stir Spot Welding of DP780 Carbon Steel... Friction Stir Spot Welding of Advanced High Strength Steels Friction Stir Spot Welding of DP780 and Hot-Stamp Boron Steels... PRODUCING A COMPOSITE SURFACE USING FRICTION STIR PROCESSING... A Feasiblity Study on Spot Friction Welding of Magnesium Alloy AZ31... The Use of Friction Stir Technology to Modify Surfaces of AM60B Magnesium Die Castings... Organizations Physical Sciences Directorate Materials Science and Technology Division Materials Structure and Processing Science Section Materials Joining Group
